Abstract: This air conditioning apparatus having sterilization function which can maintain the sterilization function for a long time period. The air conditioning apparatus having a sterilization function comprises a sterilizing coating layer formed on the surface of a component, wherein the sterilizing coating layer has copper or copper alloy particles dispersed in a resin matrix. The coating layer is formed by dispersing fine copper or copper alloy particles having a maximum particle size of about 2.5 ?m or less into an epoxy or epoxy-acryl synthetic resin, and covered on the surface of a component of the air conditioning apparatus such as a heat exchanger. The maximum content of the copper or copper alloy particles in the coating layer is preferably about 18 to 31 wt %. The thickness of the coating layer is preferably less than the maximum size of the particle.